Botswana vs Sao Tome and Principe: Standardised Precipitation-Evapotranspiration Index
Standardised Precipitation-Evapotranspiration Index over time
- Botswana
- Sao Tome and Principe
How they compare
Botswana currently reports -0.6872 against -0.7011 in Sao Tome and Principe, a difference of 0.0139.
The two have swapped places 23 times across 64 shared years of data; in 1960 it was Sao Tome and Principe ahead.
Botswana ranks 113th and Sao Tome and Principe ranks 114th of 189 countries.
Across the 7 decades both report, Botswana averaged higher in 1 and Sao Tome and Principe in 6.
Head to head by decade
| Decade | Botswana | Sao Tome and Principe | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -0.0978 | 0.4024 | 0.5003 | Sao Tome and Principe |
| 1970s | 0.8457 | -0.0607 | 0.9064 | Botswana |
| 1980s | -0.4473 | -0.3592 | 0.0881 | Sao Tome and Principe |
| 1990s | -0.7016 | -0.0169 | 0.6847 | Sao Tome and Principe |
| 2000s | -0.2308 | 0.1328 | 0.3636 | Sao Tome and Principe |
| 2010s | -0.6137 | -0.4008 | 0.2129 | Sao Tome and Principe |
| 2020s | -0.2361 | -0.1395 | 0.0967 | Sao Tome and Principe |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher standardised precipitation-evapotranspiration index, Botswana or Sao Tome and Principe?
- Botswana, at -0.6872 against -0.7011 in Sao Tome and Principe as of 2023.
- What is the difference in standardised precipitation-evapotranspiration index between Botswana and Sao Tome and Principe?
- 0.0139, with Botswana ahead.
- How many years of comparable data are there for Botswana and Sao Tome and Principe?
- 64 years are reported by both, from 1960 to 2023.
- How do Botswana and Sao Tome and Principe rank globally for standardised precipitation-evapotranspiration index?
- Botswana ranks 113th and Sao Tome and Principe ranks 114th of 189 countries.
- Where does this data come from?
- Global SPEI database (SPEIbase). https://spei.csic.es/database.html, published as Standardised Precipitation-Evapotranspiration Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
The SPEI fulfills the requirements of a drought index since its multi-scalar character enables it to be used by different scientific disciplines to detect, monitor, and analyze droughts. Like the sc-PDSI and the SPI, the SPEI can measure drought severity according to its intensity and duration, and can identify the onset and end of drought episodes. The SPEI allows comparison of drought severity through time and space, since it can be calculated over a wide range of climates, as can the SPI.